Jeep Cherokee 2000 Service Manual - page 1135
the carriers for assembly and remove the bolts, two
for each carrier (Fig. 67).
(21) Separate the two halves of each carrier,
remove from the crankshaft and temporarily re-as-
semble the carriers (Fig. 68). Withdraw the crank-
shaft through the rear of the crankcase.
INSTALLATION
(1) Fit the main bearing supports together. Torque
to 44 N·m (32 ft. lbs.)
(2) Check internal diameter of bearings.
(3) If internal diameter of original bearing is being
checked and figures are not within specifications,
new bearings must be used.
(4) Check the crankshaft main bearing journals to
bearing clearances. Clearances of main bearings is.03
to.088mm (.0011 to.0035 in.).
NOTE: Assemble engine according to sequence
described, thus saving time and preventing dam-
ages to engine components. Clean parts with a suit-
able solvent and dry them with compressed air
before assembly. Use new gaskets where applicable
and torque wrenches for correct tightening of com-
ponents.
(5) Thoroughly clean crankcase and oil passages,
and blow dry with compressed air.
(6) Install new main bearing shells in each of the
carrier halves. Assemble the carriers to the crank-
shaft
journals,
ensuring
that
the
carriers
are
installed in their original locations and that the pis-
ton jet notch is towards the front of the crank-
shaft. Secure each carrier with the two bolts
tightening evenly to 44 N·m (32 ft. lbs.). Check that
the oil jet is in position (Fig. 68).
(7) Slide special tool VM.1004 over the crankshaft
gear and, insert the crankshaft and carrier assembly
into the crankcase in the same manner used for
removal.
(8) Align the holes in the lower supports, with the
center of the crankcase webs (Fig. 69).
(9) Secure each support assembly to the crankcase
with the main bearing oil feed and support locators.
Torque to 54 N·m (40 ft. lbs).
(10) Install the rear main bearing support onto
crankshaft ensuring arrow on bearing support aligns
with vertical web in center of crankcase.
Fig. 66 Crankshaft Special Tool VM.1004
1 – TOOL
Fig. 67 Crankshaft Support Locator Bolts
Fig. 68 Crankshaft and Carrier Bearing Assembly
XJ
ENGINE
9 - 41
REMOVAL AND INSTALLATION (Continued)